[eishinsnsayshin]

Hello All,

I am using ANSA 13.2.3 to import my surface/volume mesh into FLUENT 14.0. I have prism layers on some walls. ANSA automatically created "side quad Default pshell property"s on the sides of exposed prism layers. When I import the .msh file into FLUENT, these side quad shells are automatically made into "interface" boundary conditions.

This is strange to me because in the past, every other mesh that I've imported into FLUENT that involved prisms created a wall BC for the side quad shells for both it and its "shadow surface".

Anyone out there have any idea why FLUENT would create an interface BC for a surface instead of creating a shadow surface to later be changed from a wall to interior?

What exactly is the difference between interior zones and interface zones?

Thanks!
I'm having a hard to time finding info on interface zones.